Alert archive / Indiana / Severe Thunderstorm Warnings in 1987
Severe Thunderstorm Warning 113, NWS Indianapolis, IN
NWS Indianapolis, IN issued this severe thunderstorm warning at Jul 15, 1987, 4:12 PM EST for Clay County, Indiana. It was in force for 33 min.
The area
The counties it named.
The facts
- Issued
- Jul 15, 1987, 4:12 PM EST (21:12 UTC)
- Expired
- Jul 15, 1987, 4:45 PM EST
- In force
- 33 min
- Issued by
- NWS Indianapolis, IN
- Area
- Whole counties
County Clay County, IN
The radar
The WSR-88D network and its archive begin in 1991, so there is no radar volume for this alert.
The nearest sounding before it
Salem-Leckrone, IL (KSLO), launched 12:00Z, 9.2 hours before the alert went out and 175 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.
- Mixed-layer CAPE
- 16 J/kg
- Mixed-layer CIN
- -58 J/kg
- Mixed-layer LCL
- 1306 m above ground
- 0-6 km bulk shear
- 44 kt
- 0-1 km storm-relative helicity
- 47 m²/s²
- 0-3 km storm-relative helicity
- 84 m²/s²
- Significant tornado parameter
- 0.0
- Supercell composite
- 0.0
The text
As transmitted, in the capitals the NWS used until 2016.
000 TTAA00 KIND 152114 SVRIND INC021-151645- BULLETIN - IMMEDIATE BROADCAST REQUESTED SEVERE THUNDERSTORM WARNING NATIONAL WEATHER SERVICE INDIANAPOLIS IN 412 PM EST THU JUL 15 1987 THE NATIONAL WEATHER SERVICE HAS ISSUED A SEVERE THUNDERSTORM WARNING EFFECTIVE UNTIL 445 PM EST FOR PEOPLE IN THE FOLLOWING COUNTY OF WEST CENTRAL INDIANA CLAY AT 410 PM EST...RADAR SHOWED A SEVERE THUNDERSTORM ABOUT 15 MILES EAST OF TERRE HAUTE OR JUST TO THE SOUTH OF BRAZIL. THIS STORM WAS MOVING TO THE EAST AT 30 MILES AND HOUR. A SEVERE THUNDERSTORMS PRODUCES DAMAGING WINDS IN EXCESS OF 60 MILES AN HOUR...LARGE HAIL AND FREQUENT LIGHTNING. REPORT SEVERE WEATHER TO THE NEAREST LAW ENFORCEMENT AGENCY FOR RELAY TO THE 3NATIONAL WEATHER SERVICE. HENDRICKSON
What forecasters said that day
The local office's own words before this severe thunderstorm warning went out, as it sent them, from the Iowa Environmental Mesonet's archive of National Weather Service text.
In the hours before
Special weather statement, Jul 15, 3:42 PM EST, 30 minutes before
SPECIAL WEATHER STATEMENT NATIONAL WEATHER SERVICE INDIANAPOLIS INDIANA 340 PM EST WED JUL 15 1987 IN INDIANA THIS SEVERE THUNDERSTORM WATCH IS IN EFFECT UNTIL 900 PM EST AND INCLUDES THAT PART OF INDIANA... SOUTH OF A LINE FROM KENTLAND TO 20 MILES NORTH OF PERU...WEST OF A LINE FROM 20 MILES NORTH OF PERU TO 10 MILES NORTH OF MADISON...AND NORTH OF A LINE FROM 10 MILES NORTH OF MADISON TO MOUNT CARMEL ILLINOIS. SOME CITIES INCLUDED ARE... LAFAYETTE...LOGANSPORT AND KOKOMO...TERRE HAUTE...INDIANAPOLIS...VINCENNES AND VERNON. REMEMBER...A WATCH MEANS THAT CONDITIONS ARE FAVORABLE FOR SEVERE WEATHER IN AND CLOSE TO THE WATCH AREA. PERSONS IN THESE AREAS SHOULD BE ON THE LOOKOUT FOR THREATENING WEATHER CONDITIONS AND LISTEN FOR LATER STATEMENTS AND POSSIBLE WARNINGS. STEIGERWALDT
The office that day
Everything else NWS Indianapolis, IN issued on the same UTC day.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Jul 15, 3:25 PM EST | Severe Thunderstorm Warning | IND | Parke | 35 min |
| Jul 15, 3:32 PM EST | Tornado Warning | IND | Parke, Vermillion | 28 min |
| Jul 15, 3:46 PM EST | Severe Thunderstorm Warning | IND | Brown | 34 min |
| Jul 15, 4:20 PM EST | Severe Thunderstorm Warning | IND | Bartholomew | 40 min |
| Jul 15, 5:11 PM EST | Severe Thunderstorm Warning | IND | Jackson, Jennings | 29 min |
| Jul 15, 5:28 PM EST | Tornado Warning | IND | Carroll, Cass | 32 min |
Nearby
Severe Thunderstorm Warnings in Indiana, 1987Every severe thunderstorm warning in 1987
Sources
The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive.